what do they can see in the picture 对的?是提问啦They can see （ and ）in the picture。
问题描述：
what do they can see in the picture 对的?
是提问啦
They can see （ and ）in the picture。
答
错
应该是
what can they see in the picture?
或
what do they see in the picture?
答
错…去掉do
答
一个句子两个谓语 肯定错的
答
就说 what can they see in the picture？
或者 what do they see in the picture？
注意，在一个句子中，两个助动词不能同时使用
答
错的.
正确的 应该是 what can they see in the picture?
因为你的句子里已经有了动词 can 所以就不需要在what 后面用助动词帮助提问了 直接把can 提前就好了